In this sentence:

If you are a creative person by nature, or are interested in applying high-tech visual tools and programs to enchance your career, take a closer look at MU's graduate certificate and Master of Science in Multimedia Technology.

Do we need the second are as in are interested.

Yes, you need the second "are," and you need to ditch the comma. Change this to "If you are a creative person by nature or are interested in..."

Big points for not misplacing any apostrophes, though!